The amazing world of LEGO® Technic constructions.
Based on the vision from Ole Kirk Christiansen (1891-1958), a carpenter from Billund/Denmark, whose personal motto was "Only the best is good enough" - Leg Godt (Play Well).

TechnicBRICKs blog (TBs hereafter) is devoted to the LEGO Technic theme and intends to spot mainly on news and developments, rather than new sets reviews or users creations (aka MOCs). However you will also find them here occasionally...

Tuesday, January 29, 2008

My friend Mauricio, who runs iLegos just came with another cool design proposal for a LEGO TECHNIC compressor.

This one, includes a new PF Motor ('M' size)*, a Mini-Pump, a Switch, an Air Tank of-course and some colored Pneumatic Hoses to easy air flow identification. You can find it here and just though interesting to highlight it today at TBs, as I loved its simple and cute design.

Integrated Pneumatic Switch allows Cylinders to move both ways.Just miss the inclusion of an automatic pressure control mechanism. May be for the next time Mauricio... ;)

*) This allows to easily remote control the compressor, by using a Power Functions Remote and an IR Receiver.

5 comments:

Not that I want to praise myself, but there already is an idea not only how to make an IR controlled compressor, but - above all - how to integrate a pneumatic valve into it so that you can switch the valve by changing the compressor motor rotation direction. Here's the idea: http://www.brickshelf.com/cgi-bin/gallery.cgi?f=282715And here is how it works: http://youtube.com/watch?v=ZWOYVHhLoFk

That's a really interesting way to avoid the need for an automatic compressor! Just turn the motor in the direction you want the cylinder to move, and stop it when it reaches the limit of motion.

I imagined another design, which still needs a separate compressor (but, in doing so, can use a single compressor for the entire model), but can semi-independently control two valves ("semi" because they can't be actuated simultaneously). It's a funny coincidence that it also uses a sliding worm assembly, like your design!http://www.brickshelf.com/gallery/AVCampos/Quad-1/valve_module_2.gifTheoretically it works by moving one valve (which one depends on the direction of the motor, hence the sliding worm) from one position to the middle, then to the other position, then back again, and stopping the motor when the valve is at the desired position. I wrote "theoretically" because I didn't have time to physically build this contraption, so I don't know, for example, if the 8T gears provide enough torque to shift the valves.

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